.header_red_dot{
    position: absolute;
    top:18px;
    right:-2px;
    width:12px;
    height:12px; 
    line-height: 12px;
    text-align:center;
    border-radius:50%; 
    font-size:10px;
    font-family:PingFangSC-Regular;
    color:rgba(255,255,255,1);
    background-color: #FF4646;
}

._m_l_82 {
    margin-left: 82px;
}
.change_flow{
    z-index: 1000;
}
.change_header{
    position: fixed;
    top:0;
    left:0;
    width: 100%;
    z-index: 9999;
    background-color: rgba(51,51,51,0.5);
}